Experimental Investigation On The Spiral Pipe Performance For Particle-Laden Liquids

This study conducted a simulation and an experimental study on a channel that was partly filled with open-cell metal foam block. Different blockage ratios have been considered, where the foam height could occupy more than half of the channel size. The aim is to investigate the flow behaviours across the complicated structure of the porous medium. Results show that the use of Ergun and Forchheimer models showed a similar stagnant region and recirculation zone in the partially filled channel, which agreed with the experimental results. However, the deviation in pressure drop performance at a high blockage ratio is noticeable.

Section: Introductionmentioning

confidence: 94%

Numerical and Experimental Study of Flow Behaviours in Porous Structure of Aluminium Metal Foam

Narasimmanaidu¹,

Anuar²,

Saat³

et al. 2021

“…7) The inclusion of embedded sensors in the probe head has eliminated this inconvenience, resulting in erratic pressure measurements 8) .In combustion chambers, swirling jets are employed to regulate flames 9) . The presence of a swirl causes the formation of radial and axial pressure gradients, which influence flow fields 10) . To navigate safely and successfully in the air, air vehicles require correct air data information 11) .…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Conical Flow Meter for Truth-Flow Analysis of Wind Tunnel

Rupesh¹

2023

Aerodynamic world relies on experimentation and obtaining practical results to solve complex real-life problems. The airflow characteristics are examined under different situations in aerodynamics, which allows for the solution of many real-life difficult problems. Although mathematical theoretical notions are developed to handle complex issues, they cannot be regarded as a credible source. As a result, finding experimental validation of those difficult challenges is critical. In most cases, the aerodynamic tool used to study the flow and its related characteristic is a wind tunnel. Wind tunnels generally explain the flow behavior over different bodies. But before performing experimentations with a wind tunnel, calibration needs to be carried out. In this paper, a five-probe conical flow meter has been used to ensure the truth flow inside a subsonic wind tunnel.

“…A lot of work has been done by investigator in past on spiral tube, nano fluids, still there is a huge scope in this area because invention of new advance particles and its involvement in new applications are increasing day by day. Some investigators performed work on particle-laden fluids (PLF) in spiral tube for thermal enhancement 37) . Some researches investigate the effect for screw pitch & nano particle mass fraction with spiral tube.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Fluid Flow Attributes in Rectangular Shape Micro Channel having External Rectangular Inserts with Hybrid Al_2O_3+ZnO+H_2O Nano Fluid and (H_2O) Base Fluid

Kaushik,

Ajay Kumar Verma,

Singh

et al. 2023

Comparative analysis is conducted between nano fluid (nf) Al2O3+ZnO+H2O and water (H2O) as base fluid through experimental and simulation result. The effect of nano fluid and (base) fluid flowing inside rectangular micro channel with or without insert were acknowledge, for analysis the behavior of fluid flow, heat transfer and performance characteristics like Nusselt number (Nu), Friction factor (f), Effectiveness (Ɛ), Coefficient of thermal transfer (h), Heat transfer factor (Q), Nu/Nus, f/fs, thermal-performance factor (TPF), Number of transferring unit (NTU) and Reynolds's number (Re). During preparation of nano fluid 0.01% volume fraction, 10-20 nm size nano particles were taken with 0.5ml CTAB (cetyl-2 tri-methyl, ammonium-bromide) surfactant. Experimentation was conducted for different operating parameters under counter flow conditions, where nano fluid is flowing inside micro channel of 0.081mm diameter with flow rate 0.0001562 kg/sec (9.37 ml/min) to 0.006255 Kg/sec (375.30 ml/min) and hot water is flowing inside the concentric tube of 3cm diameter with flow rate of 0.000782 Kg/sec (46.92 ml/min). The operating temperature of nano fluid and hot water were 303K and 323K. As per obtained results, the proposed composition of nanofluid showed better performance than base fluid due to better thermal conductivity and extra molecular area gain in nanofluid due to addition of nano particle with base fluid. It improves the results 21% approximately. Better optimum results were observed in case of rectangular micro channel with micro insert compared with other geometry because of rich turbulency gain and extra exposed area due to micro insert. It affects optimum results in terms of better performance up to 9%-18% compared with simple micro channel without inserts.